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e288430c05
First, if the ziplist header is surely inside the ziplist, do fast path decoding rather than the careful one. In that case, streamline the encoding if-else chain to be executed only once, and the encoding validity tested at the end. encourage inlining likely / unlikely hints for speculative execution Assertion used _exit(1) to tell the compiler that the code after them is not reachable and get rid of warnings. But in some cases assertions are placed inside tight loops, and any piece of code in them can slow down execution (code cache and other reasons), instead using either abort() or better yet, unreachable builtin.
50 lines
2.4 KiB
C
50 lines
2.4 KiB
C
/* redisassert.h -- Drop in replacements assert.h that prints the stack trace
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* in the Redis logs.
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*
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* This file should be included instead of "assert.h" inside libraries used by
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* Redis that are using assertions, so instead of Redis disappearing with
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* SIGABORT, we get the details and stack trace inside the log file.
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*
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* ----------------------------------------------------------------------------
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*
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* Copyright (c) 2006-2012, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __REDIS_ASSERT_H__
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#define __REDIS_ASSERT_H__
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#include "config.h"
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#define assert(_e) (likely((_e))?(void)0 : (_serverAssert(#_e,__FILE__,__LINE__),redis_unreachable()))
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#define panic(...) _serverPanic(__FILE__,__LINE__,__VA_ARGS__),redis_unreachable()
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void _serverAssert(char *estr, char *file, int line);
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void _serverPanic(const char *file, int line, const char *msg, ...);
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#endif
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